AS7018 12.31.208.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.31.208.0/2412.31.209.0/2412.31.210.0/2412.31.211.0/2412.31.212.0/2412.31.213.0/2412.31.214.0/2412.31.215.0/24